A tulku is a distinctive and significant aspect of Tibetan Buddhism, embodying the concept of enlightened beings taking corporeal forms to continue the lineage of specific teachings. The term "tulku" has its origins in the Tibetan word "sprul sku", which originally referred to an emperor or ruler taking human form on Earth, signifying a divine incarnation. Over time, this term evolved within Tibetan Buddhism to denote the corporeal existence of highly accomplished Buddhist masters whose purpose is to ensure the preservation and transmission of a particular lineage.

The Tibetan script is a segmental writing system (abugida) of Indic origin used to write certain Tibetic languages, including Tibetan, Dzongkha, Sikkimese, Ladakhi, Jirel and Balti. It has also been used for some non-Tibetic languages in close cultural contact with Tibet, such as Thakali and Old Turkic. The printed form is called uchen script while the hand-written cursive form used in everyday writing is called umê script. This writing system is used across the Himalayas and Tibet.